54103 Big Mouth Billet 102mm Big Mouth Throttle Body for GM LS w/ TPS and IAC

These throttle bodies offer increased throttle blade thickness to eliminate deflection commonly found with other throttle bodies, especially those in boosted applications. A smoother operating offset blade pivot improves throttle response, and a beefed up linkage and dual throttle spring mechanism ensure total throttle control. Constructed from billet aluminum, the FAST Big Mouth 102mm Throttle Body with TPS and IACis designed to maximize performance upgrades on all Gen III and Gen IV engines with cable driven throttle bodies.